We're dividing 233905 by 17 
The aim is to understand the frequency of 17 in 233905.

Let's proceed to step 1:
17 can be fit into 2 0 times, resulting in a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Include the next digit (3) from the dividend after 2, then repeat: 23 / 17

Step 2:
23 divided by 17 is 1 with a remainder of 6.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 17 from 23 leaves us with 6.
Bring next digit (3) of the dividend behind the 6 and repeat the process: 63 / 17

On to step 3:
17 can be fit into 63 3 times, resulting in a remainder of 12.
Put 3 as the next digit of the answer. 
Result so far: 13.0
Deduct 51 from 63 and we're left with 12.
Append the next digit (9) from the dividend to 12 and continue with: 129 / 17

On to step 4:
129 divided by 17 is 7 with a remainder of 10.
The number 7 becomes the next digit in our result. 
Result so far: 137.0
Deduct 119 from 129 and we're left with 10.
Bring next digit (0) of the dividend behind the 10 and repeat the process: 100 / 17

Let's proceed to step 5:
When dividing 100 by 17, we get 5 with a remainder of 15.
The next digit of our result is 5. 
Result so far: 1375.0
If we subtract 85 from 100, we get 15.
Take the next digit (5) from the dividend and append it to 15, then repeat: 155 / 17

Going ahead to step 6:
17 can be fit into 155 9 times, resulting in a remainder of 2.
Write down 9 as next digit of the result. 
Result so far: 13759.0
Subtract 153 from 155 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 7:
20 divided by 17 is 1 with a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 13759.1
Deduct 17 from 20 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 8:
30 divided by 17 is 1 with a remainder of 13.
Record the quotient 1 as the next digit in the result. 
Result so far: 13759.11
Subtract 17 from 30 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Our division results in 13759.11 with a remaining 0.013.